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course Phy 201
1.Four counts to eight. 5 seconds. 0.16 sec between each strike. The pendulum was 11.1 cm.2.period=0.68sec. It took 30 sec to make 44 swings, so 30/44=0.68
3. 1 domino= 0.25m/s 2 dominoes=0.375m/s 3 dominoes= 0.5m/s
4. 1 domino= 0.21m/s 2 dominoes=0.3m/s 3 dominoes= 0.33m/s
a. It took about 0.2 seconds to reach the floor.
5. The speed increase more from the second added domino because the distance increased by much more than from the third added domino.
6. v0,vmidx,vmidT, vAve, dv, vf
7. vf, vmidt, vmidx, and vAve would increase, none would decrease, and dv would stay the same.
8. vAve= 0.25m/s
vF= 0.5m/s
average accel= 0.21 m/s2
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